A massive ancient underground library carved into volcanic rock at twilight, towering shelves reaching into darkness filled with leather-bound tomes and floating holographic manuscripts, crystal chandeliers emitting soft amber glow, exotic glass-winged butterflies and luminescent moths hovering among cascading waterfalls flowing through marble corridors, volumetric moonlight piercing through massive skylights creating golden god rays and prismatic light dancing on polished obsidian floors, rendered with Unreal Engine 5 raytracing and PBR materials, reimagined as hand-painted Studio Ghibli animation with visible brushstrokes and watercolor texture, deep burgundy and pale gold gouache color palette, cinematic wide composition with strong architectural perspective and mystical knowledge sanctuary atmosphere